EP2844899A1 - Isolation valve - Google Patents

Isolation valve

Info

Publication number
EP2844899A1
EP2844899A1 EP13718140.0A EP13718140A EP2844899A1 EP 2844899 A1 EP2844899 A1 EP 2844899A1 EP 13718140 A EP13718140 A EP 13718140A EP 2844899 A1 EP2844899 A1 EP 2844899A1
Authority
EP
European Patent Office
Prior art keywords
housing
shut
bearing
ring
valve
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP13718140.0A
Other languages
German (de)
French (fr)
Other versions
EP2844899B1 (en
Inventor
Andreas Pauer
Michael Tschorn
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Neles Finland Oy
Original Assignee
Metso Automation Mapag GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority to DE102012103779 priority Critical
Priority to DE102012105586A priority patent/DE102012105586A1/en
Application filed by Metso Automation Mapag GmbH filed Critical Metso Automation Mapag GmbH
Priority to PCT/EP2013/057372 priority patent/WO2013164162A1/en
Publication of EP2844899A1 publication Critical patent/EP2844899A1/en
Application granted granted Critical
Publication of EP2844899B1 publication Critical patent/EP2844899B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K1/00Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
    • F16K1/16Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members
    • F16K1/18Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps
    • F16K1/22Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps with axis of rotation crossing the valve member, e.g. butterfly valves
    • F16K1/224Details of bearings for the axis of rotation
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K1/00Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
    • F16K1/16Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members
    • F16K1/18Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps
    • F16K1/22Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps with axis of rotation crossing the valve member, e.g. butterfly valves
    • F16K1/222Shaping of the valve member
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K27/00Construction of housing; Use of materials therefor
    • F16K27/02Construction of housing; Use of materials therefor of lift valves
    • F16K27/0209Check valves or pivoted valves
    • F16K27/0218Butterfly valves

Abstract

The invention relates to an isolation valve having a housing (1), a valve seat (V) arranged in the housing (1) and an isolation baffle (2) actuating the valve seat (V) which is rotatably mounted on both sides in the housing (1) by means of a bearing shaft (3a, 3b) around a rotation axis (D), arranged perpendicularly to the longitudinal axis (L) of the housing (1), between an open position and an isolating position. To solve the problem of providing such an isolating valve which has a high seal tightness in operation and enables low construction complexity and low production cost, according to the invention the bearing shaft (3) is formed from bearing shaft stumps (3a, 3b), formed integrally on both sides on the isolation baffle (2) and the housing (1) is designed as an integral and undivided housing, wherein the bearing shaft stumps (3a, 3b) are each mounted in two bearing half-shells (5a, 5b), wherein at least one first bearing half-shell (5b) for the respective bearing shaft stump (3a, 3b) is formed on a sealing ring (6) which has the valve seat (V) which is actuated by the isolation baffle (2), and wherein the isolation baffle (2) and the sealing ring (6) can be mounted from a flange side (F) at the front of the housing (1).

Description

 description

Shut-off

The invention relates to a shut-off valve comprising a housing, a valve seat arranged in the housing and a valve seat controlling shut-off disc, which is rotatably supported on both sides in the housing by means of a bearing shaft about an axis perpendicular to the longitudinal axis of the housing axis of rotation between an open position and a blocking position.

A generic shut-off valve, which has a double-eccentric mounted shut-off disc, with a rotatably mounted perpendicular to the longitudinal axis of the housing bearing shaft between an open position and a

Locking position is rotatable, is known from EP 1 207 325 B1. In known shut-off valves a continuous bearing shaft or split bearing shafts are provided for two-sided storage of the shut-off in the housing, which are rotatably connected to the shut-off. In the case of the shut-off valve known from EP 1 207 325 B1, the split bearing shafts are each arranged in a receiving bore of the shut-off disk and are connected non-rotatably to the shut-off disk. At the non-rotatable connection of the corresponding bearing shaft with the shut-off disc, however, wear may occur, which may result in operation adverse effects on the tightness of the shut-off valve in the blocking position of the shut-off. In addition, a two-sided storage of the shut-off disc by means of a split bearing shaft to a high construction cost with a high number of components, since in addition to the rotationally fixed connection of the respective bearing shaft with the shut-off on both bearing shafts an elaborate sealing

corresponding bearing shaft to the outside is required to the environment.

To avoid these disadvantages, it is already known, the shut-off disc with the bearing shaft in one piece and thus perform in one piece. Such a shut-off valve with an integrally formed on the shut-off disk bearing shaft is known from DE 200 19 780 U1. In order to allow mounting of the shut-off disc with the bearing shaft as a whole in the housing, the housing is designed as a split on a parting line two-piece housing. However, such a two-part housing causes a high construction cost and manufacturing costs. In addition is at To ensure such a two-part housing that occurs at the parting line of the housing no leakage to the outside to the environment, whereby the

 Construction costs and production costs for the two-part housing is further increased.

The present invention has for its object to provide a shut-off valve of the type mentioned available, the high in operation

 Has tightness and low construction costs and a low

 Production cost allows.

This object is achieved in that the bearing shaft is formed by on the shut-off disc on both sides integrally formed Lagerwellenstummeln and the housing is formed as a one-piece and undivided housing, the bearing shaft stub are each mounted in two bearing shells, wherein at least a first bearing half shell for the respective bearing shaft stub is formed on a sealing ring, which is provided with the valve seat controlled by the shut-off disk, and wherein the shut-off disk and the sealing ring from a front side

Flange side of the housing can be mounted. In the inventive

Shut-off valve is thus provided the shut-off disc for two-sided storage with integrally molded bearing shaft stubs. The bearing shaft stub are thus formed directly on the shut-off disc, creating a torsional and rigid composite between the bearing shaft stubs and the valve seat driving

Shut-off is achieved, which allows a high tightness of the shut-off in the blocking position during operation of the shut-off valve. In the shut-off valve according to the invention the housing is formed as a one-piece and undivided housing without parting line. The one-piece design of the housing leads to a low production cost for the housing, which continue to be effectively avoided for the installation of the shut-off previously required joints and potential leakage points to the outside to the environment. In order to mount the shut-off disc with the integrally formed bearing shaft stubs as a whole in the one-piece housing, the bearing shaft stub are mounted in two bearing shells. A first bearing half-shell is formed on a sealing ring, which is further provided with the valve seat. The sealing ring and the in the sealing ring in the corresponding

Lagerhalbschale mounted shut-off is in the inventive

Shut-off valve from a front flange side in the one-piece housing mounted, whereby the shut-off disk and the sealing ring can be mounted as a whole in a simple manner in the one-piece housing. The formation of the valve seat on the sealing ring further leads to an integration of the sealing geometry in the sealing ring, whereby the construction cost and the production cost of the

 Housing is further reduced.

The second bearing half shell for the respective bearing shaft stub, which together with the bearing half shell in the sealing ring encloses the corresponding bearing shaft stub and forms a corresponding bearing point for the bearing shaft stub, may be formed according to an embodiment of the invention on the housing. The second bearing half-shell is thus executed and manufactured directly in the housing.

The production of the housing can be further simplified if, according to an advantageous embodiment of the invention, the second bearing half shell for the respective bearing shaft stub which encloses the corresponding bearing shaft stub together with the bearing half shell in the sealing ring and a

corresponding bearing point for the bearing shaft stub forms, is formed on a bearing ring which is mountable from a flange side of the housing. As a result, special advantages can be achieved because the housing no bearing shells for the bearing shaft stub of the shut-off are to be made. The bearing shaft stub on the shut-off disk are in this case enclosed by the bearing half-shells in the sealing ring and in the bearing ring, which can be mounted together with the shut-off disk from the flange side of the housing.

According to a preferred embodiment of the invention, the housing is provided with an annular groove-shaped recess in which the sealing ring and / or the bearing ring can be inserted. Such an annular recess can with little

Manufacturing effort and manufacturing costs are made on the housing on the flange side to allow mounting of the sealing ring with the shut-off or the sealing ring and the bearing ring with the shut-off from the flange side of the housing.

Particular advantages arise when, according to a development of the invention, the shut-off disk in the longitudinal direction of the axis of rotation with an axial degree of freedom is mounted and centered by means of axial thrust bearing in the housing. Here, the construction cost of the shut-off valve according to the invention is further simplified because no additional thrust bearing are required for the shut-off. The storage of the shut-off disc with an axial degree of freedom and the centering in the housing by means of axial thrust bearing allows a simple way that the shut-off disc when operating in the locked position finds the center of the valve seat in the sealing ring and thus a high tightness of the shut-off valve is achieved in the locked position ,

According to a preferred embodiment of the invention is to drive the

Blocking a drive shaft provided, which is designed as a rotatably mounted in the housing stub shaft, wherein between the stub shaft and a

Bearing stub of the shut-off disc a torque transmitting

Plug connection is formed. The drive shaft for pivoting the

Shut-off between the blocking position and the open position can thus be performed as a torsionally rigid and flexible plug-in shaft. The

Torque is transmitted to the shut-off disc with the

torque transmitting connector in the region of a bearing shaft stub. The design of the drive shaft as a flexible plug shaft further leads to a simplified storage and sealing of the drive shaft in the housing, since the influences on the sealing device of the drive shaft, such as a

Stuffing box packing or sealing by means of sealing rings through which

Transverse forces on the bearing shaft stub and thus avoided or reduced by the transverse forces from the storage of the shut-off.

According to an advantageous embodiment of the invention is the

torque transmitting connector formed by a polygonal profile. With a polygonal profile high drive torques can be transmitted in a simple manner with a high rotational fatigue strength. In addition, a polygonal profile allows a simple way that the drive shaft can be plugged into the bearing shaft stub with low installation costs, with additional security devices are not required.

With particular advantage is at the valve seat according to an embodiment of the invention controlled by the shut-off elastic sealing means arranged, wherein the sealing ring is formed as a split sealing ring with an inner ring and an outer ring, between which a receiving space for

 Receiving and holding the sealing device is formed. With a resilient sealing device which is held and fixed in the sealing ring and is driven by the shut-off disk, a high tightness of the shut-off valve can be achieved. The execution of the sealing ring as a split sealing ring with an inner and an outer ring makes it possible in a simple manner to produce a receiving space for the sealing device on the two rings and the

 Seal device to secure between the two rings. As a result, a further reduction of the production costs of the invention

Shut-off valve achieved because the sealing geometry is placed in the region of the two rings and the valve seat controlled by the shut-off disc with the

Sealing device can be easily produced on the preferably rotationally symmetrical rings.

Appropriately, the sealing ring is screwed to the housing on the flange side. This makes it possible in a simple way, in the two

Insert half-shells mounted shut-off disc together with the sealing rings as a whole from the flange side into the housing and mount in the housing and fastened via the screw connections of the sealing ring in the housing.

In an embodiment of the sealing ring as a split sealing ring, the outer ring of the sealing ring is preferably screwed to the housing on the flange side, wherein the inner ring is screwed to the outer ring or the inner ring is clamped between the outer ring and the housing. In a split sealing ring can thus be easily attached to the inner ring of the outer ring or clamped between the housing and the outer ring.

Conveniently, a sealing device, in particular a sealing ring, is provided for sealing the sealing ring relative to the housing. With such a sealing device, the interior of the housing in the region of the sealing ring inserted and fastened in the recess of the housing can be sealed off from the outside in a simple manner to the outside. Further advantages and details of the invention will be explained in more detail with reference to the embodiments illustrated in the schematic figures. This shows

Figure 1 shows a first embodiment of an inventive

 Shut-off valve in a longitudinal section,

FIG. 2 shows a detail of FIG. 1 in an enlarged view,

3 shows the housing with inserted sealing ring,

Figures 4a, 4b, 4c, the housing and the two-piece sealing ring in one

 resolved representation,

Figure 5 shows a second embodiment of an inventive

 Shut-off valve in a longitudinal section,

FIG. 6 shows a detail of FIG. 5 in an enlarged representation,

Figure 7 shows the housing of Figures 5, 6 with inserted sealing ring and inserted bearing ring and

Figures 8a, 8b, 8c, the housing, the two-part sealing ring and the bearing ring in an exploded view.

FIG. 1 shows a first embodiment of a device according to the invention

Shut-off valve shown in a longitudinal section.

The shut-off valve has a housing 1 in which a shut-off disk 2 is rotatably mounted about a rotational axis D arranged perpendicular to the longitudinal axis L of the housing 1. The shut-off disk 2 is rotatably supported on both sides in the housing 2 with respect to the longitudinal axis L of the housing 2.

For rotatably supporting the shut-off disk 2 in the housing 1, a bearing shaft 3 is provided with which the shut-off disk 2 is rotatably mounted on both sides in the housing 1 is. In the shut-off valve according to the invention the bearing shaft 3 is designed as a split bearing shaft, wherein an upper bearing shaft stub 3a and a lower bearing shaft stub 3b are integrally formed and thus directly on the shut-off disc 2. The upper Lagerwellenwellenstummel 3a is still connected to the drive with a drive shaft 4 in connection.

In FIG. 2, the area of the upper bearing point is the upper one

 Bearing shaft stub 3a shown in more detail. The lower bearing point with the lower bearing shaft stub 3b is constructed analogously to the connection to the drive shaft 4.

In Figures 1 and 2, the shut-off disc 2 is shown in the closed position, in which a arranged in the housing 1 valve seat V is driven by the shut-off disc 2.

By pivoting the shut-off disc 2 by a rotation angle of 90 ° about the rotation axis D, the shut-off disc 2 can be brought into an open position in which the shut-off valve in the longitudinal direction and thus in the flow direction of medium can be flowed through.

In the shut-off valve according to the invention, the housing 1 is formed as a one-piece and undivided housing.

For receiving and supporting the bearing shaft stub 3a, 3b, two bearing shells 5a, 5b are respectively provided, which wrap around the corresponding bearing shaft stub 3a, 3b by 180 °.

In the embodiment shown in Figures 1 to 4c are the

Bearing half shells 5a for the bearing shaft stub 3a, 3b formed directly in the housing 1. To the shut-off disc 2 with the integrally formed

 Bearing shaft stubs 3a, 3b to be able to install as a whole in the one-piece housing 1, the bearing shells 5b are formed for the bearing shaft stub 3a, 3b on a sealing ring 6, on which further controlled by the shut-off disc 2 valve seat V is formed. The shut-off disc 2 with the molded

Bearing shaft stubs 3a, 3b and provided with the bearing shells 5b Sealing ring 6 can be inserted from a front side flange side F in the housing 1 and thus mounted in the housing 1.

For this purpose, the housing 1 is provided on the end flange side F with an annular groove-shaped recess 8, in which the sealing ring 6 and with molded

 Lagerwellenstummeln 3a, 3b provided shut-off disc 2 can be inserted from the flange side of F.

In the shut-off valve according to the invention, an elastic sealing device 10, for example an elastic sealing ring, is arranged on the valve seat V and is fastened to the sealing ring 6. The shut-off disk 2 is provided with a sealing surface 11, for example a conical surface, which actuates the sealing device 10 in the blocking position. The sealing ring 6 is designed to receive the sealing device 10 as a split sealing ring with an inner ring 6a and an outer ring 6b. In the inner ring 6a and the outer ring 6b is respectively an annular groove 12a, 12b

formed, which together form an annular channel-like receiving space in which the sealing ring 10 is inserted and held.

The shut-off disk 2 is preferably arranged double-eccentrically in the housing 1. The shut-off disc 2 is with the sealing surface 11 is spaced from the axis of rotation D - as can be seen in the figure 1 - in the longitudinal direction of the longitudinal axis L of the shut-off valve, whereby a first eccentricity is formed. By a lateral spacing of the axis of rotation D from a perpendicular to the longitudinal axis L center line of the housing 1, a second eccentricity is formed.

In the shut-off valve according to the invention the shut-off disc 2 is mounted in the longitudinal direction of the rotation axis D with an axial degree of freedom. For centering the shut-off disk 2 in the longitudinal direction of the axis of rotation D are in the region of

Bearing shaft stub 3a, 3b each run-up bearing 13a, 13b provided. The thrust bearing 13a, 13b are formed in the illustrated embodiment of bearing bushes with a stop collar, between the bearing shells 5a, 5b and the

corresponding bearing shaft stub 3a, 3b are arranged.

The drive shaft 4 is designed as a rotatably mounted in the housing 1 torsionally rigid and bending soft stub shaft. The drive shaft 4 is shown in the Embodiment with the upper bearing shaft stub 3a in combination and is inserted into the upper bearing shaft stub 3a, wherein between the

 Bearing shaft stub 3a and the drive shaft 4, a torque-transmitting connector 16 is formed. The connector 16 is preferably formed by a polygonal profile on the outer circumference of the drive shaft 4 and a receiving opening of the bearing shaft stub 3a.

The outer ring 6b of the sealing ring 6 is fixed to the flange side F on the housing 1, for which purpose a plurality of fastening screws 17 are provided in the illustrated embodiment. The inner ring 6a may be fixed to the outer ring 6b after the sealing device 10 has been inserted by means of fastening screws. In the illustrated embodiment, the inner ring 6a is clamped between the housing 1 and the outer ring 6b and is held by this clamp connection.

In order to seal the housing interior on the sealing ring 6 from the outside to the outside, between the sealing ring 6, preferably the outer ring 6b and the groove-shaped recess 8 of the housing 1, a sealing device 19, for example, designed as an O-ring sealing ring arranged.

To seal the drive shaft 4 to the outside with respect to the environment, a corresponding shaft seal 20 is provided, for example, from a

Stuffing box packing is formed.

In the figure 3, the housing 1 and the existing of the two rings 6a, 6b sealing ring 6 is shown in a pre-machined state. On the housing 1, the recess 8 and on the flange side F of the mounting flange for attachment of the sealing ring 6 is made. The two rings 6a, 6b of the sealing ring 6 are as

formed rotationally symmetrical rotating parts in which the annular grooves 12a, 12b can be made to receive the sealing device in a simple manner.

In Figure 4a, the housing 1, Figure 4b of the outer ring 6b and Figure 4c of the inner ring 6a shown as individual parts. 1 to 4c is preferably produced after installation of the two rings 6a, 6b of the sealing ring 6 in the recess 8 of the housing 1, a bearing bore 30 and thus on the groove bottom 8a of the recess 8 of the housing 1 and the sealing ring. 6 the corresponding

 Bearing half shells 5a, 5b made for the bearing shaft stub 3a, 3b and formed in the housing 1 has a through hole for receiving the drive shaft 4. In the figures 1, 3 and 4a, a plug 50 is shown in the region of the lower bearing shaft stub 3b, which is used after the preparation of the bearing half-shells 5a, 5b from inside into bearing bore 30 and is preferably welded to the housing 1.

FIGS. 5 to 8 c show a second embodiment in the shut-off device according to the invention, components which correspond to the first embodiment being provided with the same reference numerals.

In order in the embodiment of Figures 5 to 8c in the housing. 1

to produce bearing half-shells 5a for the bearing shaft stub 3a, 3b to avoid the groove bottom 8a of the recess 8, an additional bearing ring 6c is provided, in which the bearing half-shell 5a for the bearing shaft stub 3a, 3b are made. The bearing ring 6c can be inserted from the flange side F in the groove-shaped recess 8 of the housing 1 and mounted. The bearing ring 6 c is preferably clamped by the sealing ring 6 on the groove bottom 8 a of the recess 8 in the housing 1.

In FIG. 6, the area of the upper bearing point is the upper one

Bearing shaft stub 3a shown in more detail.

In the figure 7, the housing 1 and the existing of the two rings 6a, 6b sealing ring 6 and the bearing ring 6c is shown in an assembled state.

In the figure 8a, the housing 1 and in Figure 8b, the outer ring 6b is shown as a single part. FIG. 8c shows the inner ring 6a and the bearing ring 6c as individual parts in an assembled state, wherein the bearing half shells 5a, 5b for the bearing shaft stubs 3a, 3b of the shut-off disk 2 in the inner ring 6b of the

Sealing ring 6 and the bearing ring 6c are illustrated. In the shut-off valve according to the invention according to Figures 1 to 8c, the shut-off disc 2 is formed with the integrally formed bearing shaft stubs 3a, 3b as a rigid and truss-like structure comprising a plurality of stiffening ribs 2a, 2b, 2c. The shut-off disk 2 is preferably designed as a cast component.

When mounting the shut-off valve in the embodiment according to Figures 1 to 4c, the shut-off disk 2 is inserted from the flange side F via the recess 8 with the integrally formed bearing shaft stubs 3a, 3b in the formed in the housing 1 bearing half-shell 5a and then from which rings 6a, 6b and with the sealing device 10 existing sealing ring 6 inserted from the flange side F of the recess 8 in the housing 2 and fastened by means of the fastening screws 17 on the housing 1.

In the embodiment of Figures 5 to 8c is in the assembly of the

Shut-off the shut-off disc 2 with the integrally formed bearing shaft stubs 3a, 3b in the bearing half shells 5a, 5b on the sealing ring 6 (inner ring 6a) and the bearing ring 6c and thus inserted between the sealing ring 6 and the bearing ring 6c and the shut-off disc 2 together with the of the both rings 6a, 6b and the sealing device 10 existing sealing ring 6 and the bearing ring 6c are inserted from the flange side F via the recess 8 in the housing 2 and fastened by means of the fastening screws 17 on the housing 1.

The drive shaft 4 can then via the connector 16 with the

Bearing shaft stub 3a are connected.

The shut-off valve according to the invention has a number of advantages.

The shut-off valve according to the invention has a small number of components, whereby a low construction cost and manufacturing costs can be achieved. Due to the one-piece design of the bearing shaft stub 3a, 3b on the shut-off disc 2 and in the absence of a connection between separate bearing shafts and the

Shut-off 2 creates a torsional and the rigid composite of the

Shut-off disk 2 with the integrally formed bearing shaft stubs 3a, 3b and the Bearings in the housing 1, whereby a high density of the shut-off valve is achieved.

The one-piece housing 1 of the shut-off valve according to the invention is open only to one side in the region of the bearing bore 30 and the implementation of the drive shaft 4 to the outside to the environment and therefore only at this single point to

Sealed environment.

By the execution of the drive shaft 4 as torsionally rigid and flexible

Stub shaft, the influences on the sealing of the drive shaft 4 to the outside to the environment by the lateral forces in the area formed by the bearing shaft stubs 3a, 3b bearing points of the shut-off disc 2 can be reduced or reduced.

Claims

claims
1. shut-off valve with a housing (1), in the housing (1) arranged valve seat (V) and a valve seat (V) driving shut-off disc (2) in the housing (1) by means of a bearing shaft (3a, 3b) to a perpendicular to the longitudinal axis (L) of the housing (1) arranged axis of rotation (D) between a
 Opening position and a blocking position is rotatably supported on both sides, characterized in that the bearing shaft (3) on both sides of the shut-off disc (2) integrally formed Lagerwellenstummeln (3a, 3b) is formed and the housing (1) is formed as a one-piece and undivided housing, wherein the bearing shaft stub (3a, 3b) in each case in two bearing half-shells (5a, 5b) are mounted, wherein at least a first bearing half-shell (5b) for the respective
 Bearing stub (3a, 3b) on a sealing ring (6) is formed, which is provided with the of the shut-off disc (2) controlled valve seat (V), and wherein the shut-off disc (2) and the sealing ring (6) from a front flange side ( F) of the housing (1) can be mounted.
2. shut-off valve according to claim 1, characterized in that a second
 Bearing half-shell (5a) for the respective bearing shaft stub (3a, 3b) on the housing (1) is formed.
3. shut-off valve according to claim 1, characterized in that a second
 Bearing half-shell (5a) for the respective bearing shaft stub (3a, 3b) on a bearing ring (6c) is formed, which is mountable from a flange side (F) of the housing (1).
4. Shut-off valve according to one of claims 1 to 3, characterized in that the housing (1) is provided with an annular groove-shaped recess (8) in which the sealing ring (6) and / or the bearing ring (6c) can be inserted.
5. Shut-off valve according to one of claims 1 to 4, characterized in that the shut-off disc (2) in the longitudinal direction of the axis of rotation (D) is mounted with an axial degree of freedom and by means of axial thrust bearing (13a, 13b) in the housing (1) is centered.
6. Shut-off valve according to one of claims 1 to 5, characterized in that for driving the shut-off disc (2) a drive shaft (4) is provided, which is designed as rotatably mounted in the housing (1) stub shaft, wherein between the stub shaft and a bearing shaft stub (3a, 3b) of the shut-off disc (2) a torque-transmitting connector (16) is formed.
7. shut-off valve according to claim 6, characterized in that the
 Torque transmitting connector (16) is formed by a Polygonprofii.
8. Shut-off valve according to one of claims 1 to 7, characterized in that on the valve seat (V) one of the shut-off disc (2) controlled elastic sealing means (10) is arranged, wherein the sealing ring (6) as a split sealing ring with an inner ring (6 a) and an outer ring (6 b) is formed, between which a receiving space for receiving and holding the
 Seal device (10) is formed.
9. shut-off valve according to one of claims 1 to 8, characterized in that the sealing ring (6) with the housing (2) on the flange side (F) is screwed.
10. shut-off valve according to claim 8 or 9, characterized in that the
 outer ring (6b) of the sealing ring (6) to the housing (2) is screwed to the flange (F), wherein the inner ring (6a) screwed to the outer ring (6b) or the inner ring (6a) between the outer Ring (6b) and the housing (2) is clamped.
11. Shut-off valve according to one of claims 1 to 10, characterized in that for sealing the sealing ring (6) relative to the housing (2) a
 Sealing device (19), in particular a sealing ring, is provided.
EP13718140.0A 2012-04-30 2013-04-09 Isolation valve Active EP2844899B1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
DE102012103779 2012-04-30
DE102012105586A DE102012105586A1 (en) 2012-04-30 2012-06-26 Shut-off
PCT/EP2013/057372 WO2013164162A1 (en) 2012-04-30 2013-04-09 Isolation valve

Publications (2)

Publication Number Publication Date
EP2844899A1 true EP2844899A1 (en) 2015-03-11
EP2844899B1 EP2844899B1 (en) 2016-04-06

Family

ID=49323164

Family Applications (1)

Application Number Title Priority Date Filing Date
EP13718140.0A Active EP2844899B1 (en) 2012-04-30 2013-04-09 Isolation valve

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DE102014102290A1 (en) * 2013-10-28 2015-04-30 Metso Automation Mapag Gmbh Shut-off valve with rotatable shut-off disc
GB2583355A (en) * 2019-04-24 2020-10-28 Unity Well Integrity Uk Ltd Gate valve member

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GB2284647A (en) * 1993-11-30 1995-06-14 Sigeval S A Butterfly valve
DE20019780U1 (en) 2000-11-15 2001-04-19 Kieselmann Gmbh Butterfly valve
DE10057408A1 (en) 2000-11-20 2002-05-23 Linde Ag Shut-off
DE102009057491A1 (en) * 2009-12-10 2011-06-16 Apel, Helga Throttle device is provided with throttle body with ring element and outer cylinder, where throttle body is provided with cross-pervading throttle shaft with attached butterfly valve
DE102011009303A1 (en) * 2010-09-24 2012-03-29 Andocksysteme G. Untch Gmbh Multiple flap device for a contamination-free connection of two containers or lines as well as passive and active flap for this purpose

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